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Method and device for laying out distributive sites

A distributed, site technology, applied in the field of wireless communication, can solve the problems of distributed site definition dependence, antenna efficiency definition, etc., to achieve the effect of optimal distance, reduce transmission power, and reduce system power consumption

Inactive Publication Date: 2011-01-26
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The present invention provides a distributed site layout method and device, which is used to solve the defect that the definition of distributed sites depends on the definition of antenna efficiency in the prior art, and realize the optimal layout of distributed sites

Method used

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  • Method and device for laying out distributive sites
  • Method and device for laying out distributive sites
  • Method and device for laying out distributive sites

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0038] figure 2 It is a flow chart of the method for deploying distributed sites provided by Embodiment 1 of the present invention. Such as figure 2 As shown, the layout method of the distributed site of the present invention includes:

[0039] Step 201, acquiring first location information of users in the cell, where the first location information refers to location information of users in a state of uniform distribution;

[0040] In this embodiment, it is assumed that the users are evenly distributed in the cell, and then the first location information of each user in the cell can be obtained according to the known radius of the cell, that is, the location of the user obtained under the condition of uniform distribution information. The location information includes the distribution probability of the users within the coverage of each distributed station and the location coordinates of the users.

[0041] Wherein, in this embodiment, it is assumed that N distributed si...

Embodiment 2

[0067] Figure 4 It is a flow chart of the method for deploying distributed sites provided by Embodiment 2 of the present invention. This embodiment is implemented based on Embodiment 1, and the difference is that, after obtaining the first deployment location of the distributed site, the method of this embodiment further includes:

[0068] Step 401, acquiring second location information of users in the cell, where the second location information refers to location information of users in a state of non-uniform distribution;

[0069] In this embodiment, the location information in the non-uniform distribution state refers to the location information of the user in the actual application environment. Specifically, in this embodiment, the second location information of each user may be acquired through the base station. Since each user's terminal will regularly report its location to the base station, the actual location information of the user can be obtained through the info...

Embodiment 3

[0091] Figure 5 It is a flow chart of the method for deploying distributed sites provided by Embodiment 3 of the present invention. This embodiment can be implemented based on Embodiment 1 or Embodiment 2. The difference is that, after obtaining the first deployment location of the distributed site, or after optimizing the first deployment location, the deployment method of this embodiment further includes: obtaining Steps for the number of optimally distributed sites. Wherein, the present embodiment is described on the basis of Embodiment 1, then as Figure 5 As shown, the layout method of this embodiment also includes:

[0092] Step 501 , with the goal of maximizing the energy efficiency of the system, the optimal number of distributed sites is obtained.

[0093] The step 501 is specifically to obtain the optimal number of distributed sites according to the formula (14);

[0094] N'=((α-1)w / P C ) 1 / α (14)

[0095] in, is a constant; P C is the pow...

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Abstract

The invention provides a method and a device for laying out distributive sites. The method comprises the following steps of: acquiring first position information of users in a cell, wherein the first position information represents the position information of the users in a uniform distributive state; acquiring a distance function reflecting the users to distributive sites according to the first position information; and optimizing the distance function by taking the cell radius and the coverage range of the distributive sites as constraint conditions to acquire first layout positions of the distributive sites. The technical scheme of the invention does not depend on the antenna efficiency, thereby overcoming the dependence on the definition of the antenna efficiency. In the technical scheme, the distributive sites are laid out on the basis of the user positions and the cell information, which can guarantee that the distances between the users and the accessed distributive sites are the minimum so as to reduce the path loss between the users and the accessed distributive sites, and the emission power of the distributive sites can be reduced so as to reduce the system power consumption.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method and device for laying out distributed sites. Background technique [0002] In order to adapt to the rapid development of mobile communications and meet the ever-increasing user needs, Long Term Evolution (LTE for short) and LTE-Advanced mainly adopt Orthogonal Frequency Division Multiplexing (OFDM for short). The technology uses the same frequency networking method to increase the capacity of the system and improve the transmission rate. However, after the same-frequency networking is adopted, inter-cell interference is relatively serious, and inter-cell interference coordination technology needs to be adopted. In addition, in order to achieve greater system capacity, multiple input multiple output (Multiple Input Multiple Output-put; MIMO for short) technology will be used, and even some high-order MIMO technology will be used. The increase in the number of antenna...

Claims

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Application Information

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IPC IPC(8): H04W16/24H04W52/02H04W52/42
CPCY02B60/50Y02D30/70
Inventor 张天魁张从青劳里·卡斯伯特曾志民赵嵩
Owner BEIJING UNIV OF POSTS & TELECOMM
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